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发明名称
BOREHOLE-DRILLING APPARATUS
摘要
申请公布号
SU708046(A1)
申请公布日期
1980.01.05
申请号
SU19782587979
申请日期
1978.03.06
申请人
UKHTINSKIJ INDUSTRIALNYJ INSTITUT
发明人
GERZHBERG YURIJ M,SU;AKOPOV EDUARD A,SU;DOLGIJ IVAN E,SU;AVAKYAN TAMARA G,SU;OGANOV SERGEJ D,SU
分类号
E21B7/10;(IPC1-7):E21B7/10
主分类号
E21B7/10
代理机构
代理人
主权项
地址
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